No reason you can't combine chest sprays with spraying on other areas. I find I adjust my spraying habits to the perfume (closeor diffuse spray, locations, etc.) depending on the effect I want or how each individual scent performs. This is a bit of a trial and error process.
100% all depends on the fragrance.
In my experience though hair, clothes, etc. do not project. They hold on to scent and it lasts on them, sometimes for amazing lengths of time, but they don't project precicely because of this.
Personally I tend to vary between spraying my arms - wrist and inside elbow - the pulse points on my neck, in the hollow of my collarbone, back of the neck or hair and chest. With an EDC I'll rub it on my hands like lotion and apply to my chest and neck, and with parfum always just a drop or two in the hollow of the collarbone or behind the ears, but some, like BAV, as too insane and must be moved further away from my face. Otherwise I decant them into roll-ons with small metal rollers so I can distribute better without wasting the precious juice or creating an overbearing cloud of scent.
With a very light EDT like Herba Fresca I might spray both inside elbows or wrists, or one and dab it onto the other, and then my flanks or chest, or both and put a few extra distant sprays onto my hair and shirt. Often with such lighter scents I'll pop some into a travel atomizer in order to freshen up during the day. This is also handy for self-defense against scent criminals wearing Angel or Flowerbomb.
Other times I'll put one close spray on the chest and use a roll-on to get a very gentle application in other areas. I also favor roll-ons for some of my very strong, insanely long-lasting scents like Joop! Homme, Sables, a few Montales, BAV, and some vintages.
The aim is to smell it myself, but not so consistently that I end up killing my nose, and for others to notice. Notice as in hopefully catch a waft or so if they're nearby. Not be gassed from ten feet away.